Exclusive Video of Oil Train Crash Site in Heimdal, ND

We have exclusive video of the oil train crash site near Heimdal, North Dakota and it really shows the extent of damage from the Wednesday morning's derailment.

BNSF allowed our news partners at KFYR-TV in Bismarck to visit the derailment site Wednesday night.

You can see the fire is out but crews were still pouring water on some tankers last night trying to cool them down.

Crews are also monitoring a possible oil contamination in some nearby wetlands.

About 3 dozen people living near that fiery train derailment did get to go back to their homes about 10:00 Wednesday night after being evacuated Wednesday morning.

Crash investigators will be on the site today as they try to figure out what happened.

The fire crash and fire happened around 7:30 Wednesday morning. Witnesses say they could feel and hear the explosions.

BNSF Railway says the train had 109 cars, all but one carrying crude oil.